SchemaContentHandler.java

package org.springframework.roo.addon.dbre.addon.model;

import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * {@link ContentHandler} for finding the schema attribute of the
 * <code>database</code> element in the DBRE XML file and creating a
 * {@link Schema} object.
 * 
 * @author Alan Stewart
 * @since 1.1
 */
public class SchemaContentHandler extends DefaultHandler {

  private Schema schema;

  /**
   * Constructor for no schema
   */
  public SchemaContentHandler() {}

  /**
   * Returns the parsed schema
   * 
   * @return <code>null</code> if not parsed yet
   */
  public Schema getSchema() {
    return schema;
  }

  @Override
  public void startElement(final String uri, final String localName, final String qName,
      final Attributes attributes) throws SAXException {
    if (qName.equals("database")) {
      schema = new Schema(attributes.getValue("name"));
    }
  }
}